Device for arc welding, in particular submerged-arc welding,...

Details Device for arc welding, in particular submerged-arc welding,... Device for arc welding, in particular submerged-arc welding,...

B - Operations, Transporting

23

K

327/41, 327/65

B23K 9/12 (2006.01) B23K 9/073 (2006.01) B23K 9/10 (2006.01)

Patent

CA 1223645

Abstract The invention relates to a device for arc welding with one or more fusible electrodes (15) which are in each case supplied from an alternating-current source (14) having a falling characteristic. The feed rate of the electrode (15) is regulated for constant arc length as a function of the arc voltage. Via a further regulator (37), the deposition efficiency is regulated by supplying the regulator (37) with the feed rate as actual value and changing the welding-current intensity as a function of this value. The change in welding-current intensity leads to an increase or decrease in arc length which, in turn, is compensated via the first regulator by changing the feed rate.

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